| Resumo: |
Little is known about the morphology of the quitinized structures related to the spermatheca of Muscidae (Diptera). Most papers illustrate only the spermatheca, which shape has little systematic significance when analyzed as a separate character. The analysis of these structures in 16 Muscidae species, made it possible to clarify and understand some characters, which can be used in further phylogenetic analysis. The species selected to this study belong to different sub-families: Muscinae, Muscini: Biopyrellia bipuncta (Wiedemann, 1830); Musca domestica Linnaeus, 1758; Azeliinae, Reinwardtini: Philornis univitattus Dodge, 1968; Cyrtoneurininae: Charadrella malacophaga Lopes, 1938; Cyrtoneurina polystigma (Wulp, 1896); Neomuscina neosimilis Snyder, 1949; Mydaeinae: Brontaea debilis (Williston, 1896); Graphomyia mexicana Giglio-Tos, 1893; Mydaea plaumani Snyder, 1941; Scutellomusca marginata (Albuquerque, 1954); Phaoninae: Dolichophaonia gallicola (ALbuquerque, 1958); Phaonia nigriventris (Albuquerque, 1954); Coenosiinae, Limnophorini: Limnophora saeva (Wiedemann, 1830); Coenosiini: Coenosia camorinensis Albuquerque, 1956 and Neodexiopsis paulistensis Albuquerque, 1956. The structures were described based on seven diagnostic characters.
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